Natalie Portman added a little star power to the world premiere of Jack Pettibone Riccobono’s eye-opening doc about a Native American gang leader on Saturday.

The actress serves as executive producer on The Seventh Fire, and at the Q&A after the premiere explained how she brought director Terrence Malick onboard as presenter.

“I had the great honor of working with Terry a few years ago, and when I saw the film, I told Jack I’d love to share this with him,” she said. “[Malick’s] generosity with fostering young talents is unparalleled, and he said he loved the film and would do whatever he could to help it.”

Portman, who stars in Malick’s Knight of Cups, unspooling for the first time on Sunday, added that The Seventh Fire showed the effects that the process of colonization had on indigenous Native American communities in the U.S.

“They’re very close to their traditions, and clearly when that’s lost people try to find something to replace it,” she said. “Obviously, the process…and the imposition of other values onto indigenous communities has separated people from that culture and that has an extraordinarily destructive effect.”